1169661 has 8 divisors (see below), whose sum is σ = 1609984. Its totient is φ = 754560.

The previous prime is 1169647. The next prime is 1169669. The reversal of 1169661 is 1669611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1169661 - 2⁹ = 1169149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1169669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6196 + ... + 6381.

It is an arithmetic number, because the mean of its divisors is an integer number (201248).

2^1169661 is an apocalyptic number.

It is an amenable number.

1169661 is a deficient number, since it is larger than the sum of its proper divisors (440323).

1169661 is a wasteful number, since it uses less digits than its factorization.

1169661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12611.

The product of its digits is 1944, while the sum is 30.

The square root of 1169661 is about 1081.5086684812. The cubic root of 1169661 is about 105.3626462864.

It can be divided in two parts, 1169 and 661, that added together give a triangular number (1830 = T₆₀).

The spelling of 1169661 in words is "one million, one hundred sixty-nine thousand, six hundred sixty-one".